Mechanics Demonstrations

• UC Berkeley Mechanics Demonstrations
• Measurement
  • Basic Units
    • Standards Of Mass (1a10.20)
    • Standards Of Length (1a10.30)
    • 1 "Nsec" (1a10.36)
    • Clocks (1a10.40)
    • Wwv Signal (1a10.45)
    • One Liter Cube (1a10.50)
    • Mass, Volume, And Density (1a10.55)
    • Avagadro'S Number Box (1a10.60)
    • Mole Samples (1a10.65)
    • Density Samples (1a10.70)
  • Error And Accuracy
    • Gaussian Curve (1a20.10)
    • Reaction Time (1a20.60)
  • Coordinate Systems
    • XYZ Axes (1a30.10)
    • Polar Coordinates (1a30.30)
    • Chalkboard Globe (1a30.40)
    • Blackboard Hemisphere (1a30.41)
  • Vectors
    • Components Of Vectors (1a40.10)
    • Folding Rule (1a40.20)
    • Tinker Toys (1a40.25)
    • Vector Addition And Subtraction (1a40.30)
    • Vernier Vector Addition II (1a40.35)
  • Math Topics
    • Radian (1a50.10)
  • Scaling
    • Powers Of Ten (1a60.10)
    • Scaling Model For Biological Systems (1a60.20)
    • Scaling Cube (1a60.40)
• Motion In One Dimension
  • Velocity
    • Bulldozer On Moving Sheet (1c10.10)
    • Air Track And Glider (1c10.25)
    • Velocity - Air Track And Glider (1c10.27)
    • Approaching Instantaneous Velocity (1c10.30)
  • Uniform Acceleration
    • Penny And Feather (1c20.10)
    • Hammer And Feather On Moon (1c20.12)
    • Drop Lead And Cork Balls (1c20.15)
    • Drop Ball And Paper (1c20.16)
    • Equal Time Equal Distance Drop (1c20.20)
    • Inclined Air Track (1c20.30)
    • Blinky Track (1c20.40)
    • Blinky Track With Graphs (1c20.41)
  • Measuring g
    • Pasco Free Fall (1c30.10)
    • Little Big Ball Dropper (1c30.15)
    • Big Big Ball Dropper (1c30.20)
    • Catch A Meter Stick (1c30.55)
• Motion In Two Dimensions
  • Displacement In Two Dimensions
    • Ball In A Tube (1d10.10)
    • Cycloid Generator (1d10.20)
    • Mounted Wheel (1d10.40)
    • Ball On The Edge Of A Disk (1d10.50)
  • Velocity, Position, And Acceleration
    • Ultrasonic Ranger And Student (1d15.10)
    • High Road Low Road (1d15.20)
    • Catching The Train (1d15.30)
    • Passing The Train (1d15.35)
    • Galileo's Circle (1d15.40)
    • Brachistochrone (1d15.50)
    • Triple Track (1d15.55)
  • Motion Of The Center Of Mass
    • Throw Objects (1d40.10)
    • Loaded Bolas (1d40.15)
    • Spinning Block (1d40.20)
    • Air Track Pendulum Glider (1d40.50)
    • Air Track Inchworm (1d40.55)
  • Central Forces
    • Ball On A String (1d50.10)
    • Arrow On A Disc (1d50.15)
    • Whirligig (1d50.20)
    • Conical Pendulum (1d50.25)
    • Carnival Ride Model (1d50.30)
    • Pail Of Water / Nails (1d50.40)
    • Penny On The Coat Hanger (1d50.45)
    • Balls On A Propeller (1d50.48)
    • Welch Centripetal Force (1d50.50)
    • Banked Track (1d50.60)
    • Rolling Chain (1d50.70)
  • Deformation By Central Forces
    • Flattening Earth (1d52.10)
    • Water Parabola (1d52.20)
    • Balls In Water Centrifuge (1d52.30)
    • Rotating Candle (1d52.40)
    • Paper Saw (1d52.50)
  • Centrifugal Escape
    • Broken Ring (1d55.10)
    • The Big Omega (1d55.11)
    • Grinding Wheel (1d55.20)
    • Falling Off The Merry-Go-Round (1d55.30)
  • Projectile Motion
    • Ball To Throw (1d60.05)
    • Howitzer And Tunnel (1d60.10)
    • Howitzer And Tunnel On Incline (1d60.15)
    • Simultaneous Fall (1d60.20)
    • Monkey And Hunter (1d60.30)
    • Range Of A Gun (1d60.40)
    • Parabolic Path Through Rings (1d60.50)
    • Parabolic Trajectory (1d60.60)
    • Water Trough Trajectory (1d60.65)
• Relative Motion
  • Moving Reference Frames
    • Crossing The River (1e10.10)
    • Frames Of Reference (1e10.20)
  • Rotating Reference Frames
    • Foucault Pendulum (1e20.10)
    • Foucault Pendulum Model (1e20.20)
    • Foucault Pendulum Latitude Model (1e20.30)
  • Coriolis Effect
    • Draw The Coriolis Curve (1e30.11)
    • Coriolis Overhead Transparency (1e30.13)
    • Coriolis Gun (1e30.20)
    • Rotating Tv Camera (1e30.50)
• Newton'S First Law
  • Measuring Inertia
    • Inertia Balance (1f10.10)
    • Inertia Bongs (1f10.20)
    • Foam Rocks (1f10.25)
  • Inertia Of Rest
    • Inertia Balls (1f20.10)
    • Bowling Ball Inertia Balls (1f20.11)
    • Inertia Block (1f20.15)
    • Smash Your Hand (1f20.20)
    • Hit The Nail On The "Head" (1f20.22)
    • Smash The Block (1f20.25)
    • Tablecloth Pull (1f20.30)
    • Inertia Cylinder (1f20.33)
    • Eggs And Pizza Pan (1f20.35)
    • Stick On Wine Glasses (1f20.40)
    • Shifted Air Track Inertia (1f20.50)
  • Inertia Of Motion
    • Persistence Of Motion (1f30.10)
    • Car On Cart On Cart (1f30.30)
    • Nail By Hand (1f30.40)
    • Pencil And Plywood (1f30.50)
• Newton'S Second Law
  • Force, Mass, And Acceleration
    • Constant Mass Acceleration System (1g10.11)
    • Roller Cart And Bunge Loop (1g10.15)
    • Accelerated Instructor (1g10.22)
    • Acceleration Block (1g10.25)
    • Atwood's Machine (1g10.40)
  • Accelerated Reference Frames
    • Candle In A Bottle (1g20.10)
    • Ball In A Thrown Tube (1g20.20)
    • Cup And Weights (1g20.40)
    • Dropped Slinky (1g20.45)
    • Local Vertical With Acceleration (1g20.70)
    • Cart And Elastic Band (1g20.80)
    • Acceleration Pendulum Cart (1g20.85)
  • Complex Systems
    • Mass On A Spring On A Balance (1g30.20)
    • Hourglass On A Balance (1g30.30)
• Newton'S Third Law
  • Action And Reaction
    • Push Me Pull Me Carts (1h10.10)
    • Newton's Sailboat (1h10.20)
  • Recoil
    • Floor Cart & Medicine Ball (1h11.10)
    • Stool On Conveyor (1h11.11)
    • Liquid Nitrogen Cannon (1h11.30)
• Statics Of Rigid Bodies
  • Finding Center Of Gravity
    • Map Of State (1j10.10)
    • Loaded Beam - Moving Scales (1j10.20)
    • Center Of Gravity Of A Broom (1j10.25)
    • Meter Stick On Fingers (1j10.30)
  • Exceeding Center Of Gravity
    • Leaning Tower Of Pisa (1j11.10)
    • Toppling Cylinders (1j11.11)
    • Tipping Block On Incline (1j11.15)
    • Tower Of Lire (1j11.20)
    • Double Cone (1j11.50)
  • Stable, Unstable, And Neutral Equalibrium
    • Bowling Ball Stability (1j20.10)
    • Balance The Cone (1j20.11)
    • Block Stability (1j20.12)
    • Block On A Cylinder (1j20.15)
    • Blocks On Curved Surfaces (1j20.17)
    • Fork, Spoon, And Match (1j20.20)
    • Nine Nails On One (1j20.25)
    • Spoon On Nose (1j20.32)
    • Tightrope Walking (1j20.45)
    • Tightrope Walking Model (1j20.46)
    • Wine Butler (1j20.60)
  • Resolution Of Forces
    • Suspended Block (1j30.10)
    • Normal Force (1j30.15)
    • Tension In A String (1j30.20)
    • Rope And Three Students (1j30.25)
    • Rope And Three Weights (1j30.26)
    • Deflect A Rope (1j30.27)
    • Break Wire With Hinge (1j30.30)
    • Booms (1j30.40)
    • 'Blackboard' Force Table (1j30.50)
    • Human Force Table (1j30.55)
    • Sail Against The Wind (1j30.60)
    • Sand In The Tube (1j30.70)
    • Stand On An Egg (1j30.75)
  • Static Torque
    • Grip Bar (1j40.10)
    • Torque Beam (1j40.20)
    • Walking The Plank (1j40.24)
    • Opening A Door (1j40.30)
    • Loaded Beam (1j40.40)
    • Galileo Lever (1j40.45)
    • Roberval Balance (1j40.50)
    • Suspended Ladder (1j40.60)
    • Hanging Gate (1j40.65)
    • Arm Model (1j40.75)
• Applications Of Newton's Laws
  • Dynamic Torque
    • Tipping Block (1k10.10)
    • Tipping Blocks (1k10.11)
    • Against A Wall (1k10.20)
    • Ladder - Full Scale (1k10.25)
    • Walking The Spool (1k10.30)
    • Pull The Bike Pedal (1k10.40)
    • Traction Force Roller (1k10.41)
    • Extended Traction Force (1k10.42)
    • Rolling Uphill (1k10.50)
  • Friction
    • Washboard Friction Model (1k20.05)
    • Friction Blocks - Surface Material (1k20.10)
    • Weight Dependence Of Friction (1k20.15)
    • Area Dependence Of Friction (1k20.20)
    • Static Vs. Sliding Friction (1k20.30)
    • Angle Of Repose (1k20.35)
    • Front And Rear Brakes (1k20.40)
    • Friction Roller (1k20.42)
    • Frictional Force Rotator (1k20.45)
    • Falling Flask Capstan (1k20.70)
  • Pressure
    • Bed Of Nails (1k30.10)
    • Pop The Balloons (1k30.20)
• Gravity
  • Universal Gravitational Constant
    • Cavendish Balance Video (1l10.10)
    • Cavendish Balance Model (1l10.20)
    • Cavendish Balance (1l10.30)
  • Orbits
    • Conic Sections (1l20.40)
• Work And Energy
  • Work
    • Shelf And Block (1m10.10)
    • Pile Driver (1m10.20)
    • Pile Driver With Pop Cans (1m10.25)
  • Simple Machines
    • Pulleys (1m20.10)
    • Pulley Advantage (1m20.11)
    • Pulley And Scales (1m20.15)
    • Monkey And Bananas (1m20.25)
    • The Big Screw (1m20.35)
    • Levers (1m20.40)
  • Non-Conservative Forces
    • Air Track Collision W/ Sliding Mass (1m30.10)
  • Conservation Of Energy
    • Nose Basher (1m40.10)
    • Stopped Pendulum (1m40.15)
    • Loop The Loop (1m40.20)
    • Energy Well Track (1m40.25)
    • Adjustable Track (1m40.30)
    • Roller Coaster (1m40.35)
    • Ballistic Pendulum (1m40.40)
    • Big Yo-Yo (1m40.50)
    • Height Of A Ball (1m40.60)
    • 1- D Trampoline (1m40.61)
    • Mechanical Jumping Bean (1m40.66)
    • Rattleback (1m40.90)
  • Mechanical Power
    • Prony Brake (1m50.10)
• Linear Momentum And Collisions
  • Impulse And Thrust
    • Collision Time Pendula (1n10.10)
    • Silicone Ball On Blackboard (1n10.15)
    • Egg In Sheet (1n10.20)
    • Pile Driver With Foam Rubber (1n10.30)
    • Car Crashes (1n10.35)
    • Auto Collision Video Disk (1n10.40)
  • Conservation Of Linear Momentum
    • See-Saw Center Of Mass (1n20.10)
    • Car On A Rolling Board (1n20.15)
    • Spring Apart Air Track Glider (1n20.20)
    • Elastic Band Reaction Carts (1n20.25)
  • Mass And Momentum Transfer
    • Floor Carts & Medicine Ball (1n21.10)
    • Catapult From Cart To Cart (1n21.20)
    • Ballistic Air Glider (1n21.30)
    • Drop Weight On Moving Cart (1n21.40)
    • Vertical Catapult From Moving Cart (1n21.45)
  • Rockets
    • Fire Extinguisher Rocket (1n22.10)
    • Water Rocket (1n22.20)
    • Balloon Rocket (1n22.25)
    • Rocket Around The Moon (1n22.33)
    • Ball Bearing Rocket Cart (1n22.40)
  • Collisions In One Dimension
    • Collision Balls (1n30.10)
    • Bowling Ball Collision Balls (1n30.11)
    • 3:1 Collision Balls (1n30.20)
    • Impedance Match Collision Balls (1n30.25)
    • Air Track Collision Gliders (1n30.30)
    • The Bouncing Dart (1n30.50)
    • Elastic And Inelastic Model (1n30.55)
    • Double Ball Bounce (1n30.60)
    • Double Air Glider Bounce (1n30.65)
  • Collisions In Two Dimensions
    • Air Table Collisions (1n40.20)
• Rotational Dynamics
  • Moment Of Inertia
    • Inertia Wands And Two Students (1q10.10)
    • Ring, Disk, And Sphere (1q10.30)
    • All Disks Roll The Same (1q10.35)
    • Racing Disks (1q10.40)
  • Rotational Energy
    • Adjustable Angular Momentum (1q20.10)
    • Angular Acceleration Wheel (1q20.20)
    • Rolling Spool (1q20.30)
    • Bike Wheel On Incline (1q20.35)
    • Faster Than "g" (1q20.50)
    • Bowling Ball Faster Than "g" (1q20.51)
    • Pennies On A Meter Stick (1q20.55)
    • Falling Meter Sticks (1q20.60)
  • Transfer Of Angular Momentum
    • Passing The Wheel (1q30.10)
    • Drop Bags O' Rice (1q30.20)
    • Satellite Derotator (1q30.25)
    • Catch The Ball On The Stool (1q30.30)
  • Conservation Of Angular Momentum
    • Rotating Stool And Dumbbells (1q40.10)
    • Rotating Stool And Long Bar (1q40.15)
    • Squeezatron (1q40.20)
    • Pulling On The Whirligig (1q40.25)
    • Rotating Stool & Bicycle Wheel (1q40.30)
    • Train On A Circular Track (1q40.40)
    • Sewer Pipe Pull (1q40.60)
    • Hero's Engine (1q40.80)
  • Gyros
    • Precessing Disk (1q50.10)
    • Bicycle Wheel Gyro (1q50.20)
    • Walking The Wheel (1q50.24)
    • Double Bicycle Wheel Gyro (1q50.25)
    • Mitac Gyro (1q50.30)
    • Ride A Gyro (1q50.31)
    • Gyro In Gimbals (1q50.35)
    • Suitcase Gyro (1q50.40)
    • Air Bearing Gyro (1q50.45)
  • Rotational Stability
    • Bike Wheel Top (1q60.10)
    • Humming Top (1q60.15)
    • Tippe Top (1q60.30)
    • Spinning Football (1q60.35)
    • Billiard Ball Ellipsoid (1q60.37)
    • Tossing The Book (1q60.40)
    • Spinning Lariat, Hoop, And Disk (1q60.50)
    • Static/Dynamic Balance (1q60.80)
• Elasticity
  • Hooke's Law
    • Stretching A Spring (1r10.10)
    • Strain Gauge (1r10.20)
  • Tensile And Compressive Stress
    • Breaking Wire (1r20.10)
    • Bending Beam (1r20.20)
  • Shear Stress
    • Shear Book (1r30.10)
    • Foam Block (1r30.20)
    • Spring Cube (1r30.30)
    • Torsion Rod (1r30.40)
  • Coefficient Of Restitution
    • Bouncing Balls (1r40.10)
    • Dead And Live Balls (1r40.30)
  • Crystal Structure
    • Crystal Models (1r50.20)
    • Crystal Fault Model (1r50.40)
    • Crushing Salt (1r50.45)